Friday, November 12, 2010

Gay men are disgusted by lesbian sex

I didn't know that gay men are not necessarily disgusted by depictions of heterosexual sex but are disgusted by lesbian sex (check out the study here). It makes sense though: If there is at least one actor whom you find sexually attractive, you will focus on him or her and be able to find the scene arousing; otherwise, it will disgust you.

I've often wondered if our disgust for same sex isn't hardwired into us. Porn for straight men uses women-on-women touching to appeal to a guy's fantasies of having more than one woman at a time, but the actual non-fantasy brand of lesbian sex, that is, two real lesbians, not porn actresses, both of whom or at least one who is/are pretty butch would turn off the average straight guy.

Supposedly Bailey and his crew have been researching what it is in particular about women that gay guys find to be a turn off. I don't why he thinks that will lead to much info.

In case you're interested here are some good links. The number of studies of rats, mice, sheep the last few years make me wonder if it won't be that much longer before we understand the neurological underpinings of sexual attractions in humans.

Out just recently--I haven't read Marc Breedlove's latest yet since it's only available to subscribers, but seems he and his team may on the trail of solving the confusion over how estrogen and androgen receptors masculinize the brain. (in the mouse, anyway) Seems they've come up with a model that describes the roles of the estrogen receptor in masculine fetal development and the post-natal contributions of androgen receptors in full masculinization of the male brain in the mouse:

"The Testosterone Two-Step is Really a Minuet" http://www.cell.com/neuron/abstract/S0896-6273(10)00296-5

Of course, it's Charles Roselli's work with sheep that offers the best model for studying human sexuality as 60% of domestic rams are attracted to ewes while the remainder are either attracted to other rams or are entirely asexual. Obviously, something is going on there. You may be familiar with his work, but if not, here's his ram model:

Key lines at the end of paragraph 1:"These results fail to support an essential role for neural aromatase in the sexual differentiation of sheep brain and behaviour. Thus, we propose that oSDN morphology and male-typical partner preferences may instead be programmed through an androgen receptor mechanism not involving aromatisation."

Previous to this, Roselli and his team spent a lot of time testing the aromatisation hypothesis. Maybe Breedlove's latest and that fact that Roselli is now looking at androgen receptors more closely in the ram will lead to something.

A good read:Breedlove,et al. (2008): http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2706155/

"The Role of Androgen Receptors in the Masculinization of Brain and Behavior: What we’ve learned from the Testicular Feminization Mutation"

And there's this, (from 2007), the discovery that female mice have dual sexual circuitry triggered by smell and that there is a genetic switch that silences one depending on gender:

I came across a cool XXX website that has some pretty good free streaming videos. I'm guessing it's relatively new since their video page is under construction. But, what really struck me was the fact that they will be offering full downloadable material. http://www.pornsmacker.com

Heya just wanted to give you a quick heads up and let you know a few of the pictures aren't loading correctly. I'm not sure why but I think its a linking issue.I've tried it in two different web browsers and both show the same outcome.

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